Don Krieg was once known as the cruelest pirate in the East Blue. He is dependent on his heavy armor and dangerous weapons in combat against his foes. He ran away from the Grand Line after experiencing major difficulties and decided to return to his old stomping grounds.

Roronoa Zoro is a sword fighter once known as the Pirate Hunter who joins the Straw Hat Pirates as first-mate and aims to become the world's greatest swordsman to fulfill a childhood promise with his special three-sword style, Santoryu.